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(Article of periodic en Anglais - 2009)

Document title

Morphometry and Late Holocene activity of solifluction landforms in the Sierra Nevada, Southern Spain

published at : The Permafrost Young Researchers Network (PYRN). Special issue

Authors(s) and Affiliation(s)

OLIVA M. (1) ; SCHULTE L. (1) ; GÓMEZ-ORTIZ A. (1) ;
(1) Dep. for Physical and Regional Geography and Landscape Research Lab., Univ., Barcelona, ESPAGNE

Abstract

Numerous solifluction landforms in two valleys of the western part of the Sierra Nevada range in the southern Iberian Peninsula were classified according to morphology and used to reconstruct solifluction activity for the Late Holocene. Lobes are almost inactive under the current semiarid climate and water availability appears to be the crucial control on activity within the high-elevation study areas. The presence of numerous inactive solifluction lobes suggests that past climate conditions must have been more favourable for lobe development. Chronostratigraphic profiles of several lobes indicate that colder and/or wetter periods (e.g. the Little Ice Age) tend to promote slope movements, with sparser vegetation cover and higher solifluction rates whereas a denser vegetation cover spreads across valley floors and soils develop during warmer periods (e.g. the Medieval Warm Period)

Source

Thematical fascicle

published at : Permafrost and periglacial processes / ISSN 1045-6740 / CODEN PEPPED

Editor : Wiley, Chichester - ROYAUME-UNI (1990)

Millesime : 2009, vol. 20, no 4 [pp. 369-382]

Bibliographic references : 1,5 p.

Collation : fig., tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/ppp.645

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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